Question about FastStore with NextJs 14

[snikoloska]

Hi,

We are thinking to use FastStore from VTEX as our store front, so I have some questions:

1. Can I use FastStore with the AppRouter from NextJs instead with pages?
2. Should I create FastStore app from scratch, or I can include just Components, SDK, and API packages, in my already existing project and use them?
3. Can I deploy FastStore app on any platform?
4. Can I integrate login in FastStore app with different providers?

Thank you in advance.